Each one in plain English, with the numbers worked through for a shareholder.
4 May 2026annual report● Neutral
Corporate Governance Statement for 2025, current at 4 May 2026. It reports a board of six men and no women, and says no measurable gender diversity objectives are set yet. Routine compliance filing with no new business information.
4 May 2026annual report● Neutral
Appendix 4G for the year to 31 December 2025, a checklist pointing to the Corporate Governance Statement on the company website. Signed by CEO Hayden Locke, dated 4 May 2026. Administrative, with no new business information.
10 Apr 2026other● Neutral
Monthly securities statement for March 2026: CDIs 47,844,616, common shares 85,976,362. 200,000 options at C$4.60 were exercised, giving 101,604 shares. RSUs were issued to directors and management on 30 March. Administrative.
7 Apr 2026drilling result▲ Good
Complete silver assays for all Pampa Medina drilling show silver tracking copper, e.g. SMRD-13 6m at 11.98% Cu and 82g/t Ag. Copper results were already released. Rigs, now five, are to increase over April and May.
7 Apr 2026investor presentation● Neutral
April 2026 corporate presentation dated 2 April 2026. The visible text is the cover and disclaimers only, with no new figures or results shown.
31 Mar 2026annual report● Neutral
Management's discussion for 2025 restates known events: the August 2025 DFS (50,000t a year, 13-year reserve life), the November RCA environmental approval, Pampa Medina drilling and a C$500m shelf prospectus. Targets construction-readiness in H2 2026. No new figures in the visible text.
31 Mar 2026annual report● Neutral
Annual Information Form dated 30 March 2026 for 2025. The visible text is the contents page only, so it shows no new information. It is a compliance filing covering the business, properties and directors.
31 Mar 2026director officer appointment● NeutralMajor
Giancarlo Bruno Lagomarsino, a director since 2023 and former Mantos Copper CEO, became Chair, replacing Michael Haworth, who stays as director and Audit Committee chair. Zenon Wozniak (ex-First Quantum) joined the board; Alan Stephens and Clive Newall retired on 27 March 2026.
31 Mar 2026annual report● Neutral
Audited 2025 financial statements carry a clean PwC opinion. Exploration and evaluation assets were $90.6m at 31 December 2025, and management found no impairment indicators. The visible text gives no cash or loss figures.
19 Mar 2026investor presentation● Neutral
March 2026 corporate presentation dated 18 March 2026. The visible text is the cover and disclaimers only, with no new figures or results shown.
12 Mar 2026drilling result▲ GoodMajor
Pampa Medina west step-out holes hit high-grade copper-silver, best SWRD-02 74m at 1.21% Cu and 7.9g/t Ag from 520m, about 600m west of earlier drilling. Marimaca will expand from five to 10 rigs, targeting 100,000m in 2026, subject to stage-gates.
10 Mar 2026other● Neutral
S&P update to the All Ordinaries rebalance: changes affect African Gold and American Rare Earths only. Marimaca's addition to the index, effective 23 March 2026, is unchanged.
9 Mar 2026other● Neutral
Monthly securities statement for February 2026: CDIs 49,392,405 (up 21,925,676, from share transfers to CDIs) and common shares 84,326,969. The statement shows no new shares from the offering. Administrative.
6 Mar 2026other▲ Good
S&P index quarterly rebalance notice. Marimaca Copper (MC2) is listed as an addition to the All Ordinaries index, effective 23 March 2026. The rest of the notice covers other companies.
3 Mar 2026director officer appointment▲ GoodMajor
Joshua Watson, formerly of Teck, Barrick and Rio Tinto, appointed Project Director to lead development of the Marimaca Oxide Deposit. Nico Cookson became President from 1 March 2026; Hayden Locke remains CEO. The announcement says Marimaca is moving to the next development phase.
27 Feb 2026capital raising announcement● NeutralMajor
Australian leg closed, completing the C$409m (about A$423m) global offering. 15,200,913 existing CDIs sold at A$10.35 (A$157m) with no proceeds to the company. Greenstone drops from 18.58% to 6.44% of shares and CDIs.
27 Feb 2026capital raising announcement▲ GoodMajor
Canadian leg closed: C$257m, including C$136.5m of new shares for Marimaca. Insiders Assore (AIH) and Ithaki took 4,170,000 and 3,412,500 shares. Mitsubishi was given notice to buy additional shares under its existing agreement; outcome is cut off in the text. TSX final approval still pending.
20 Feb 2026capital raising announcement● Neutral
Canadian prospectus supplement formalises the offering of 25,699,087 shares at C$10.00 (C$257m): 13,650,000 new from Marimaca and 12,049,087 sold by Greenstone. The company gets no secondary proceeds. Closing price before the offering was C$11.05 (A$11.55 on ASX).
What it means for a shareholder
25.7m new shares at C$10.00 to raise about C$257m. Shares on issue before the raise aren't in the record, so the dilution can't be worked out.
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19 Feb 2026capital raising announcement▲ GoodMajor
Bookbuild completed for the C$409m offering: C$136.5m new shares (13,650,000 at C$10.00) to the company, C$272.5m existing shares sold by holders. Greenstone's stake falls from 18.58% after sale. Pro forma cash before costs is C$227m (about A$235m).
What it means for a shareholder
137m new shares at C$10.00 to raise about C$1.36bn. Shares on issue before the raise aren't in the record, so the dilution can't be worked out.
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18 Feb 2026capital raising announcement▲ GoodMajor
Marimaca launched a C$409m (about A$423m) global offering: about C$136m new shares from the company and about C$273m sold by Greenstone and others. Priced at C$10.00 per share and A$10.35 per CDI. Company proceeds fund pre-construction engineering, early site works and Pampa Medina drilling.
10 Feb 2026other● Neutral
Monthly securities statement for January 2026: CDIs 27,466,729 (down 19,400 via TSX transfers), common shares 92,602,645. The 500,000 warrants at C$5.85 were converted and some options and RSUs redeemed. Administrative.
6 Feb 2026investor presentation● Neutral
February 2026 corporate presentation dated 5 February 2026. The visible text is cover and disclaimers only, with no new figures or results shown.
28 Jan 2026drilling result▲ GoodMajor
Phase II Pampa Medina results show new north-east oxide: SMRD-30 162m at 0.61% Cu, SMR-29 116m at 0.51% Cu, about 800m from the known oxide area. The company is re-evaluating the paused PEA for a larger oxide scale. Four deep sulphide holes await assays.
16 Jan 2026investor presentation● Neutral
January 2026 corporate presentation. The visible text is cover and disclaimers only, still referencing the 25 August 2025 date, with no new figures shown.
13 Jan 2026other● Neutral
Monthly securities statement for December 2025: CDIs 27,486,129 and common shares 91,906,464. Options and RSUs have declined, with a correction for a duplicated November RSU conversion. The 500,000 warrants at C$5.85 (expiring 7 Feb 2026) are still listed. Administrative.
23 Dec 2025capital raising announcement● NeutralMajor
Marimaca filed a preliminary base shelf prospectus in Canada for up to $500m of shares, warrants, units or subscription receipts over 25 months. It is a flexible filing with no offering, price or size set yet, and it is not offered in Australia.
8 Dec 2025other● Neutral
Monthly securities statement for November 2025: CDIs 27,537,676 (down 733,312 via transfers to TSX), common shares 90,979,898. Several options and the 500,000 warrants are listed at zero here, with the reason not stated. Administrative.
13 Nov 2025half year report● Neutral
Unaudited Q3 2025 financial statements (not auditor-reviewed): working capital US$75.8m at 30 September 2025, up from US$22.7m at December 2024. Management says this funds at least the next twelve months. Consistent with the September raise.
13 Nov 2025quarterly activities report● Neutral
Q3 2025 MD&A recapping known events: Pampa Medina drilling, the acid plant option, the August feasibility study (US$587m capex, 50ktpa) and the A$80m placement. The DFS technical report was filed 9 October 2025. No new results visible.
12 Nov 2025drilling result▲ GoodMajor
Final results from the 10,000m Pampa Medina program: SMRD-22 hit 48m at 2.05% Cu, SMR-19 16m at 2.29% Cu, 900m south of earlier drilling. Mineralisation now spans 1.6km x 1.4km and is open. A 30,000m Phase II program with five rigs has started.
